Sash-suspension device.



.is found in assembling HARRY E. CAMPBELL,

i SASH-SUSPENS-ION 'DEVICE Application filed December 16,1915.

To all lwhom it may concern:

Be it known that I, HARRY E. CAMPBELL, a citizen of the United States,residing at New York, inthe county of New York and State of New York,have invented a certain new and useful Improvement inSash-Suspension'Devices', ofwhich the following'is a specifications.. iThe invention relates tosash suspension devices. Y l

,lVhere suspension shafts cariving sprocket or chain` wheels faston'each end, over which wheels the sash chains pass, are to be introducedinto hollow klintels, wherein said shafts have their journal bearings',difficulty the shafts in the lintels aftenthe window-frame has beenbuiltin place.l vThis is chiefly due to the neces,-v

restrictedv area of the opening in the sai-ily which each bottom of thelintelv through shaft; with its affixed wheels must be inview.` Fig. iisl a sei-ted. My present invention is designed to overcme thisdifficulty, and consists in the construction of the hollow lintel andthe suspension shafts and wheels adapted there-y to, as moreparticularly hereinafter set forth.

In the accompanying drawings---Figu-re` l is a vertical longitudinalsection of my improved sash suspension device onthe line. 1, l of Fig.'2; Fig. Q is a horizontal section k on theline 2, '2 of Fig. t. Fig.- 3is a bottom cross 5 is a cross section on 4, 4'of Fig. 1. Fig.

Fw. G' shows one the line 5, 5 of Fig. 1.

i C of the chain wheels, and shaft support therein, the stirriip and thecover` of said p support in perspective and separated. n

lSimilar letters -aiid' numbers of reference indicate like parts.

.1 is-tlie hollow' box-shaped lintel of a window-frame. 'all B at eachend-and a plate C forming part of the bottom Wall are foi-inedintegrally. The top wall D and side walls E are-formed integrally of a.suitably bent metal plate which rests upon'the vend Walls. On the endwalls B are lugs F which` receive the bolts (l, by which the lintel is isecured to the sill, not shown. T he'bottom plates C rest upon thejainbs l-l, which are hollow `to receive the `suspension counter`weights l. .'l`he opening in the bottoni ofl the lintel is closed by ametal plate J resting edges of the plates (l.

against shoulders AK, Fig. l, in thev inner and secured bolts l.entering angle-bars M on the side walls E.

Specification of Letters Patent.

section -on the line tending from opposiiigffaccs of or NEW Yonx, N. Y.

Patenteaiienfs, 1916. Serial No. 67,295'.

seated in said support. The shaft isunited a stirrup 10 which passes tosaid support by under said seat 8.4 `The threaded ends of thestirrup'passthrough openings in the cover 11, which fits upon the,shaft, and are secured by nuts.

lThere are `P of the `integrally formed with the two parallel shafts l9, having supports and chain wheelsat their ends,-asL

described.v Over 4veach, wheel passes a chain 12, having one end securedto a sash partly showndin Fig. '-lk at 13, and the otherend tov acount'er-weight The lchains 12 pass through suitable openings in thebottom plates C.. The wheels 7 'are disposed in recesses in the blocksN. l, v p

By reason' of this construction the introduction 4of the suspensionshafts and wheels into they hollow lintel,l after `the windowframe isbuilt in place,'is greatly facilitated. To this endthe ycover platedv isremoved, and the wheels having been i the bottom, opening, are seated inthe bearings in blocks N. AThe shafts can then kbe placed in their seats8, and ythe cover plates 11 are place.

Iclaim: 1. A sash suspension device, comprising a polygonal shaft, twovchain'wheels, bea-rings- -for said wheels, sash chains engagingsaidwheels, polygonalfseats for said shaft exand nieaisfor securing saidshaft in said seats..v f "2. A sashd suspension device, comprising aiolvvonal shaft two chain wheels, bearings n i 2.-

chains engaging said for saidshaft exfor said wheels, sash. wheels.polygonal Seats tending from opposing faces of said wheels,

.a stirrup, receiving said seat, and a cover fitting upon said shaft andengaging the legs of said'stirrup.

- 3. A sash suspension device, comprising .1 polygonal shaft, a hollowlintel having an opening in its chain .wheels having kjournalsprojecting passed through f said wheels,

bottom wall, two parallel` vfinally introduced and secured -in g vv1,171,168

from their outer faces, fixed bearings in said' In testimony whereof Ihave a'xed my 11nte1 recelvlng szud Journals, sash @hams slgnature 1npresence of two Wltnesses.

engaging said Wheels7 polygonal seats for HARRY E. CAMPBELL. 4saidShaffy extending from the opposing /Vitnesses; `5 faces of said wheels,and means for secur- GERTRUDE T. PORTER,

ing said shaft in said seats. MAY T. MCGARRY.

